Master / PhD thesis project on "Interaction effects on topological properties of multiterminal Josephson junctions" - Grenoble, France
Applications for a Master internship and/or a PhD position in condensed matter theory are requested. The research will be guided by by Manuel Houzet and Julia Meyer at INAC/PHELIQS, Université Grenoble-Alpes and CEA Grenoble. The PhD position is funded by the CEA ("sujet phare").
There is currently an active search for new phases of matter that admit topologically protected edge states. A promising route to realize them consists in combining conventional materials into appropriate heterostructures. Multiterminal Josephson junctions between conventional superconductors may be considered as topological materials themselves. As an example, 4-terminal junctions can accommodate topologically protected zero-energy bound states, which form so-called Weyl singularities. Their existence may be revealed through a quantized transconductance, like in the quantum Hall effect, but without magnetic field. The aim of the project will be to explore further this recent idea by investigating theoretically the robustness of this prediction in the presence of local Coulomb repulsion within the junction. In particular, the fate of Weyl singularities will be analyzed within an actual quantum-dot model for the junction. More information can be found here.
Interested candidates should have a good basis in quantum mechanics, statistical physics, and condensed matter physics. Applicants should send a cover letter, a CV, as well as Master's and Bachelor's transcripts by email to manuel.houzet_AT_cea.fr or julia.meyer_AT_univ-grenoble-alpes.fr. Electronic submission in a single pdf file is strongly preferred. In addition, each applicant should arrange for two letters of recommendation to be sent.
The search will be continued until the position is filled.